Mens style, Flame Resistant 4.5 oz. Nomex IIIA 93% Nomex Aramid/ 5% Kevlar Aramid/ 2% Other Fiber. Insulation: Flame resistant 10 oz. Quilted Nomex. Hook and loop chin strap. Secure in place, button holes for four point suspension. Arc Rating EBT 44.1 calories/cm2. sku: HNL2 Mens Hard Hat Liner Nomex IIIA Accessories Jacket, brand: Bulwark